Quit being cheap and buy a quality power supply, depending on future use you may not have to replace it for quite a while, and with a good UPS, you might have it last longer than the 11 years one of my servers P/S's has on it!!
^^All the new PSU's of Corsair are pretty average. Expect for the AX series which is one of the best! The newer CX series is just a cheap replacement. Looks like letting go of Seasonic is hurting Corsair.